<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<script src="https://unpkg.com/vue@next"></script>
<div id="app">
    <template v-if="isOk">
        <h1>a</h1>
        <h1>a</h1>
        <h1>b</h1>
        <h1>b</h1>
        <h1>c</h1>
        <h1>c</h1>
    </template>

    <div v-if="isOk">
        <h2>asdf</h2>
        <h3>zzzz</h3>
    </div>
</div>
<script>
    const vueOpt = {
        data(){
            return {
                isOk: true
            }
        }
    }

    const app = Vue.createApp(vueOpt);

    app.mount('#app')
</script>
</body>
</html>